An empirical plasmasphere and trough density model: CRRES observations

By B. Sheeley, Mark B. Moldwin, H. Rassoul, R. R. Anderson. 2001

495 citations recorded by the source corpus.

Subfields: Astronomy and Astrophysics, Molecular Biology

View Paper: https://www.semanticscholar.org/paper/56ff931fb7841f100ba39fa9de6bee27f2b8808b

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In Astronomy and Astrophysics

1. R. Thorne
2. Nigel P. Meredith
3. Y. Shprits
4. Wen Li
5. R. Horne
6. Binbin Ni
7. Jacob Bortnik
8. S. Glauert

In Molecular Biology

1. R. Thorne
2. Y. Shprits
3. Wen Li
4. R. Horne
5. Nigel P. Meredith
6. Binbin Ni
7. Jacob Bortnik
8. S. Glauert

Citations in the corpus

• Three-dimensional simulations of outer radiation belt electron dynamics including cross-diffusion terms (2010, background): “[Sheeley et al., 2001] and a dipolar geomagnetic field model.”
• Theory and simulation of the generation of whistler‐mode chorus (2008, unknown): “However, the electron plasma frequency can be close to the electron cyclotron frequency under disturbed magnetospheric conditions, especially in the region just outside the plasmapause [e.g., Sheeley et al., 2001 ].”
• Parameterization of radiation belt electron loss timescales due to interactions with chorus waves (2007, methodology): “To compute the ratio of plasma to gyro frequency (wpe/We) which controls the resonant scattering, we use the plasma trough density model of Sheeley et al. [2001] and a dipole magnetic field model.”
• Timescales for radiation belt electron acceleration and loss due to resonant wave‐particle interactions: 2. Evaluation for VLF chorus, ELF hiss, and electromagnetic ion cyclotron waves (2007, methodology): “density model due to Sheeley et al. [2001], and we apply 60% drift-averaging. To estimate the loss timescale tloss due to chorus at L = 3.0, 3.5, 4.0, 4.5, and 5.0, we determine the quantity tloss = 1/hDaai, where hDaai is the bounceaveraged pitch angle diffusion coefficient for the specified chorus”
• Energetic outer zone electron loss timescalesduring low geomagnetic activity (2006, methodology): “In order to construct their empirical plasmaspheric density model, Sheeley et al. [2001] adopted an L-shell dependent boundary number density, given by nb =1 0 7 (6.6/L) 4 m � 3 ,t o separate plasmaspheric-like and trough-like values.”
• Global distributions of suprathermal electrons observed on THEMIS and potential mechanisms for access into the plasmasphere (2010, methodology): “calibrated by a statistical comparison with 2 years of ESA observations for each spacecraft, while the plasmasphere density is estimated by fitting the statistical density profile given by Sheeley et al. [2001]. Details of the method are”
• Dynamic evolution of energetic outer zone electrons due to wave‐particle interactions during storms (2007, methodology): “The complete sets of wave properties used in our simulation (listed in Table 1) are based on previous observational studies [Horne et al., 2005; Meredith et al., 2004, 2006; Loto’aniu et al., 2006; Sheeley et al., 2001; Spasojevic ´e t al., 2003; Shprits et al., 2007].”
• THEMIS analysis of observed equatorial electron distributions responsible for the chorus excitation (2010, background): “waves are generated outside the plasmapause, equation (1) [Moldwin et al., 1994; Sheeley et al., 2001] is used to distinguish between plasmaspheric and trough‐like densities”
• Acceleration mechanism responsible for the formation of the new radiation belt during the 2003 Halloween solar storm (2006, methodology): “N = 100 cm 3, is used to simulate equatorial conditions outside the plasmapause at L = 3 [Sheeley et al., 2001].”
• Bounce‐averaged diffusion coefficients for field‐aligned chorus waves (2006, methodology): “[7] Scattering rates are highly dependent on the plasma density which shows high variability during storms [ Sheeley et al., 2001 ], and on the latitudinal distribution of waves [Thorne et al., 2005], which is currently not well understood.”
• A new model of the location of the plasmapause: CRRES results (2002, methodology): “This is consistent with earlier results that found the nightside trough is often an order of magnitude lower density that the dayside trough [e.g., Chen et al., 1976; Decreau et al., 1982; Sheeley et al., 2001].”
• Dependence of the quasi‐linear scattering rates on the wave normal distribution of chorus waves (2009, methodology): “To estimate the ratio of plasma to gyrofrequency, we used a statistical density model [ Sheeley et al., 2001 ] and a dipole magnetic field.”
• Evolution of electron fluxes in the outer radiation belt computed with the VERB code (2009, methodology): “The plasma density outside the plasmasphere is computed following Sheeley et al. [2001] , while inside of the plasmasphere we use the model of Carpenter and Anderson [1992].”